In Vitro Crude Protein Digestibility of Tenebrio Molitor and Hermetia Illucens Insect Meals and its Correlation with Chemical Composition Traits

By S. Marono, G. Piccolo, Rosa Loponte, C. Di Meo, Y. Attia, A. Nizza, F. Bovera. 2015

248 citations recorded by the source corpus.

The aims of this study were to evaluate the correlation between in vitro crude protein digestibility coefficients of insect meals from Tenebrio molitor (TI) and Hermetia illucens (HI) and their chemical composition traits as well as to develop regression equations able to estimate the in vitro crude protein digestibility (CPd) from proximate analysis of insect meals. Twelve samples of insect meals (6 from TM larvae, TM 1-6 and 6 from HI larvae, HI 1-6) were obtained from different producers and analysed for chemical composition and in vitro crude protein digestibility by a two-step enzymatic method (digestion with pepsin and trypsin-enriched pancreatin). For both insect meal samples, CPd was negatively correlated to ADF and chitin contents, while just for HI there was a positive correlation (P<0.01) between CP percentage of the samples and CPd. For both insect meals the former variable chosen in the stepwise analysis was the chitin, explaining the 79.45% of CPd variability for Tenebrio molitor samples and the 98.30% for Hermetia illucens. In the second step, the amount of protein linked to ADF was added in the model for T. molitor and CP for H. illucens samples. The coefficients chitin is the main constituent of insect body able to affect the crude protein digestibility of Tenebrio molitor and Hermetia illucens larvae meals estimated by an in vitro enzymatic method.

Subfields: Genetics, Insect Science, Social Psychology

View Paper: https://www.semanticscholar.org/paper/1ca2c1f45dbb16a8aac902f71ae1d6d2dbdab4c8

How researchers see this paper

The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.

In Genetics

1. Efthimia Antonopoulou
2. L. Gasco
3. G. Piccolo
4. F. Gai
5. S. Chatzifotis

In Insect Science

1. L. Gasco
2. F. Gai
3. G. Piccolo
4. M. Henry
5. Efthimia Antonopoulou
6. S. Chatzifotis

In Social Psychology

1. M. Henry
2. Efthimia Antonopoulou
3. L. Gasco
4. G. Piccolo
5. F. Gai
6. S. Chatzifotis

Citations in the corpus

• Tenebrio molitor meal in diets for European sea bass (Dicentrarchus labrax L.) juveniles: Growth performance, whole body composition and in vivo apparent digestibility (2016, background): “Some trials have been conducted in vitro (Marono et al., 2015; Sánchez-Muros et al., 2015; Yi et al., 2016) but to our knowledge, only one trial was performed in vivo, and showed a decrease of protein apparent digestibility coefficient (ADC) when TM was included at a 50% level in rainbow trout…”
• Effect of Tenebrio molitor larvae meal on growth performance, in vivo nutrients digestibility, somatic and marketable indexes of gilthead sea bream (Sparus aurata) (2017, background): “Some trials have been conducted in vitro (Marono et al., 2015; Sánchez-Muros et al., 2015; Yi et al., 2016) but to our knowledge, no trial was performed to evaluate the in vivo digestibility in gilthead seabream.”